Expansive soils
Expansive soils
(OP)
Are there any references for how to calculate forces/pressures exerted by expansive soils? I just curious to know how much non-expansive material may be required on top of an expansive clay in order to place a slab-on-grade. Or also check pressures exerted to a wall backfilled with expansive soils. Thanks!!





RE: Expansive soils
Have the material tested.
RE: Expansive soils
Also, what are the site-specific tests that you are referring to?
RE: Expansive soils
RE: Expansive soils
RE: Expansive soils
Thread 261-85083
Also see if you can find:
Williams, AAB, Transactions , South African Institution of Civil Engineers, Vol 8, No. 6 1958
attached is a chart that may be of use.
RE: Expansive soils
RE: Expansive soils
Why would you use a CBR test for such an issue ? i would recommend an oedometer test which may help get a rough estimate of the expansive pressure.
In any case , mineralogy is important as you can significantly improve the performance of the clay by adding chemical products .
RE: Expansive soils